Well the vehicle is backfiring which can be caused by bad gas, spark plugs, or just needs some carburetor service.
Gravity causes falling objects to accelerate.
Accelerate, motion is generated by applying force to mass.
Low Power Steering Fluid
THRUST
the brakes
The grid of time.
Speed, velocity.
air
The natural constant force of attraction.
A person pressing the gas pedal.
Usually the force generated by its engines.
ermmm... 'missing eyeballs' will be the cause of blindness